| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 47c - Iowan Surface | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 52046 - Farley, IA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 7 | 13 | 24 | 36 | 48 | 57 | 62 | 59 | 50 | 39 | 27 | 14 | 36 |
| Avg Max Temp (°F) | 25 | 31 | 44 | 58 | 70 | 79 | 83 | 81 | 73 | 61 | 44 | 30 | 57 |
| Avg Precip (In.) | 1.16 | 1.22 | 2.27 | 3.36 | 3.9 | 4.5 | 3.81 | 4.61 | 3.5 | 2.44 | 2.47 | 1.53 | 34.76 |